| .460 Rowland |
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| Designer | Johnny Rowland |
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| Designed | 1997 |
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| Manufacturer | .460 Rowland LLC |
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| Produced | 1997–present |
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| Case type | Rimless, straight |
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| Land diameter | .442 in (11.2 mm) |
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| Neck diameter | .473 in (12.0 mm) |
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| Base diameter | .476 in (12.1 mm) |
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| Rim diameter | .480 in (12.2 mm) |
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| Rim thickness | .049 in (1.2 mm) |
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| Case length | .957in (24.3 mm) |
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| Overall length | 1.275 in (32.4 mm) |
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| Maximum pressure | 40,000 psi |
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| Bullet mass/type |
Velocity |
Energy |
| 230 gr (15 g) JHP Buffalo Bore |
1,350 ft/s (410 m/s) |
931 ft⋅lbf (1,262 J) |
|
The .460 Rowland / 11.43×24mm is a rimless, straight walled handgun cartridge designed in 1997 by Johnny Rowland and developed in conjunction with Clark Custom Guns as a derivative of the .45 ACP with the goal of producing a cartridge which can achieve true .44 Magnum ballistic performance and be fired from a semi-automatic platform. Despite its name, the Rowland is a true .45 caliber cartridge, like its parent.